1.Effect of bluetongue virusinfection on type Ⅰ interferon response in BHK-21 cells
Shimei LUO ; Yunyi CHEN ; Qisha LI ; Yanmei ZHOU ; Yifei WANG ; Xinyu LIAO ; Xuer-Ou HU ; Yuanjian WEI ; Mengqin LI ; Meng ZHU ; Xun ZHANG ; Beirui CHEN ; Xianping MA ; Jiarui XIE ; Meiling KOU ; Haisheng MIAO ; Fang LI ; Huashan YI
Chinese Journal of Veterinary Science 2024;44(8):1639-1644,1690
Bluetongue virus is an arbovirus that seriously harms ruminants such as sheep,this study aims to investigate the molecular mechanism of bluetongue virus infection and host cell interferon antiviral immune response.The study was conducted to characterize the mRNA expression of inter-feron pathway genes by real-time fluorescence quantitative PCR,as well as Western blot analysis of MDA5,TRAF3,RIG-Ⅰ,and TBK1 protein expression in BHK-21 cells induced by BTV with a multiplicity of infections(MOI)of 1 for 18,24,and 36 h.The results showed that the most pro-nounced changes in the expression of interferon signaling pathway genes were observed at 24 h of induction,the gene mRNA expression levels of the IFN-α,IFN-β,RIG-Ⅰ,TBK1,MDA5,VISA,and TRAF3 genes were upregulated.However,the mRNA expression levels of IKKε and TRAF6 genes were downregulated.At the protein level,MDA5 and TBK1 proteins were upregulated while RIG-1 and TRAF3 proteins were downregulated,which showed that BTV infection induces a typeⅠ interferon immune response in BHK-21 cells.This study lays the foundation for further exploring the antiviral immunity mechanism of IFN-Ⅰ signaling pathway regulatory genes in host cells infected with BTV infection.
2.The current research status of ataxia telangiectasia mutated gene in the treatment of bladder cancer
Longmei FAN ; Jiajia TANG ; Tianyu HUANG ; Yuanjian LIAO ; Mingshun ZUO ; Neng ZHANG ; Jiangrong ZHANG
Tumor 2024;44(10):1044-1050
The ataxia telangiectasia mutated(ATM)gene is an important tumor suppressor gene and a key effector gene in regulating the repair of double-strand DNA breaks.It plays an indispensable role in maintaining genetic stability,facilitating cell cycle arrest,and modulating cell apoptosis.When the ATM gene mutates,it fails to effectively induce the phosphorylation of downstream targets,leading to impaired DNA repair mechanisms,genetic instability,and chromosomal structural abnormalities,ultimately promoting abnormal proliferation of tumor cells.Analysis of next-generation sequencing(NGS)datas reveals a relatively high mutation rate of the ATM gene in bladder cancer cells.Relevant studies have shown that ATM gene regulates the proliferation,invasion,and metastasis of bladder cancer cells through the signaling pathways such as nuclear transcription factor-κB(NF-κB)and Interferon-γ(IFNγ).Mutanted ATM gene can enhance patients'sensitivity to radiotherapy and chemotherapy,and boost the efficacy of immunotherapy,resulting in a generally better prognosis for patients with ATM gene mutation.This finding marks ATM gene as a potential therapeutic target and predictive prognosis biomarker for bladder cancer patients.Therefore,this article will comprehensively review the research on the ATM gene in bladder cancer from 3 aspects:the structural characteristics of the ATM gene and its tumor-suppressing and tumor-promoting functions,the mechanism of action of the ATM gene in the occurrence and development of bladder cancer,and the impact of the ATM gene on the treatment and prognosis of bladder cancer patients.Additionally,the future research directions of the ATM gene was prospected,with the aim of providing new targets for the drug treatment of bladder cancer,and bringing new hope for the treatment of bladder cancer patients.
3.Research progress on the mechanism of ferroptosis-related genes in bladder cancer
Jiajia TANG ; Longmei FAN ; Tianyu HUANG ; Mingshun ZUO ; Yuanjian LIAO ; Te XU ; Neng ZHANG ; Jiangrong ZHANG
Tumor 2024;44(11):1141-1150
Ferroptosis is a form of iron dependent cell death,which is closely related to the progress and prognosis of bladder cancer(BCa).Among them,erroptosis related genes(FRGs)play an important role in the biological effects of BCa,such as participating in regulating the proliferation,migration,metastasis,drug resistance,immune regulation,and therapeutic efficacy of BCa cells.In addition,FRGs are also important biomarkers for predicting the prognosis of tumor patients.However,the specific mechanism of action of FRGs in BCa remains elusive.How to use FRGs to predict the prognosis of BCa and guide the treatment of BCa is still in the exploratory stage.Therefore,exploring the regulatory and predictive role of FRGs in BCa is particularly important for the diagnosis and treatment of BCa.This article aims to systematically elucidate the role of FRGs in the occurrence,development,treatment,and prognosis of BCa.To provide theoretical reference for further exploring the treatment of refractory and drug-resistant BCa patients,and constructing prognostic risk prediction models.
4.The current research status of ataxia telangiectasia mutated gene in the treatment of bladder cancer
Longmei FAN ; Jiajia TANG ; Tianyu HUANG ; Yuanjian LIAO ; Mingshun ZUO ; Neng ZHANG ; Jiangrong ZHANG
Tumor 2024;44(10):1044-1050
The ataxia telangiectasia mutated(ATM)gene is an important tumor suppressor gene and a key effector gene in regulating the repair of double-strand DNA breaks.It plays an indispensable role in maintaining genetic stability,facilitating cell cycle arrest,and modulating cell apoptosis.When the ATM gene mutates,it fails to effectively induce the phosphorylation of downstream targets,leading to impaired DNA repair mechanisms,genetic instability,and chromosomal structural abnormalities,ultimately promoting abnormal proliferation of tumor cells.Analysis of next-generation sequencing(NGS)datas reveals a relatively high mutation rate of the ATM gene in bladder cancer cells.Relevant studies have shown that ATM gene regulates the proliferation,invasion,and metastasis of bladder cancer cells through the signaling pathways such as nuclear transcription factor-κB(NF-κB)and Interferon-γ(IFNγ).Mutanted ATM gene can enhance patients'sensitivity to radiotherapy and chemotherapy,and boost the efficacy of immunotherapy,resulting in a generally better prognosis for patients with ATM gene mutation.This finding marks ATM gene as a potential therapeutic target and predictive prognosis biomarker for bladder cancer patients.Therefore,this article will comprehensively review the research on the ATM gene in bladder cancer from 3 aspects:the structural characteristics of the ATM gene and its tumor-suppressing and tumor-promoting functions,the mechanism of action of the ATM gene in the occurrence and development of bladder cancer,and the impact of the ATM gene on the treatment and prognosis of bladder cancer patients.Additionally,the future research directions of the ATM gene was prospected,with the aim of providing new targets for the drug treatment of bladder cancer,and bringing new hope for the treatment of bladder cancer patients.
5.Research progress on the mechanism of ferroptosis-related genes in bladder cancer
Jiajia TANG ; Longmei FAN ; Tianyu HUANG ; Mingshun ZUO ; Yuanjian LIAO ; Te XU ; Neng ZHANG ; Jiangrong ZHANG
Tumor 2024;44(11):1141-1150
Ferroptosis is a form of iron dependent cell death,which is closely related to the progress and prognosis of bladder cancer(BCa).Among them,erroptosis related genes(FRGs)play an important role in the biological effects of BCa,such as participating in regulating the proliferation,migration,metastasis,drug resistance,immune regulation,and therapeutic efficacy of BCa cells.In addition,FRGs are also important biomarkers for predicting the prognosis of tumor patients.However,the specific mechanism of action of FRGs in BCa remains elusive.How to use FRGs to predict the prognosis of BCa and guide the treatment of BCa is still in the exploratory stage.Therefore,exploring the regulatory and predictive role of FRGs in BCa is particularly important for the diagnosis and treatment of BCa.This article aims to systematically elucidate the role of FRGs in the occurrence,development,treatment,and prognosis of BCa.To provide theoretical reference for further exploring the treatment of refractory and drug-resistant BCa patients,and constructing prognostic risk prediction models.
6.Progress in genetic research on metastatic pheochromocytoma and paraganglioma
Yuanjian LIAO ; Jingjing YAO ; Mingshun ZUO ; Hongchuan CHEN ; Te XU ; Neng ZHANG
The Journal of Practical Medicine 2023;39(23):3137-3142
Metastatic pheochromocytoma and paraganglioma(MPPGL)is a rare neuroendocrine tumour in which genetic factors play an important role.In recent years,with the continuous progress of genetic testing technol-ogy,more and more susceptibility genes have been proved to be associated with MPPGL,making early identifica-tion of MPPGL possible.Recent studies have shown that genes associated with the development of MPPGL include SDHA,SDHB,SDHC,SDHD,SDHAF2,FH,MDH2,VHL,IDH1,PDH1/2,SLC25A11,GOT2,DLST,CSDE1,MAML3,H3F3A,MERTK,PCDHGC3,and KIF1B,with SDHA,SDHB,SDHC,SDHD,and SDHAF2 being the common pathogenic genes.Potential mutations affect the clinical manifestations of MPPGL,such as malignant potential and genetic prediction,which can help to better understand the clinical course and treat accordingly.Genetic testing for pheochromocytomas and paragangliomas allows for early detection of genetic syndromes and facilitates close follow-up of high-risk patients.This article provides a review of the progress of research on susceptibility genes identified in MPPGL in recent years,with a view to providing a certain theoretical basis for further related research.
7.The relationship between serum insulin-like growth factor-2 levels and clinical characteristics in patients with schizophrenia
Feng LIANG ; Yuanjian YANG ; Jianwen XIONG ; Haibo CHEN ; Jinqiong ZHAN ; Dan LIAO ; Chaoxiong ZHOU ; Maorong HU ; Kun YAN ; Bo WEI
Chinese Journal of Nervous and Mental Diseases 2015;(7):401-405,430
Objective To explore the change of serum insulin-like growth factor-2 (IGF-2) and its relationship with clinical characteristics in patients with schizophrenia. Methods Fifty-one schizophrenic patients were recruited in the present study and 50 healthy volunteers served as controls. The serum IGF-2 level was measured using enzyme linked immunosorbent assay (ELISA). Positive and Negative Syndrome Scale (PANSS) was used to evaluate the psychotic symp?toms of patients. Trail Making Test-A (TMTA), Digit-Symbol Coding Test (DSCT), Continuous Performance Test (CPT) and Stroop Color-Word Test (SCWT) were used to evaluate the cognitive function of both groups. Results There were sig?nificant differences in the results of TMTA, DSCT, CPT and SCWT between patient and control groups. The serum levels of IGF-2 were significantly lower in patients than that in controls [(202.7±40.7) ng/mL vs. (365.9±65.5) ng/mL, P<0.01]. The levels of serum IGF-2 were not significantly different between first-episode and recurrent schizophrenic patients (P>0.05). Furthermore, significant correlations were found between the serum IGF-2 level and the negative symptom sub?scale of PANSS (r=-0.397, P=0.004), CPT score (r=0.378, P=0.006), SCWT-word number (r=0.289, P=0.040), SC? WT-color number (r=0.327, P=0.019) and SCWT-word/color number (r=0.386, P=0.005) in schizophrenic patients. Con?clusion The serum IGF-2 levels of patients with schizophrenia are significantly lower than that of healthy controls, and the IGF-2 level is associated with the severity of negative symptoms and cognitive impairments in patients, indicating that serum IGF-2 might be an indicator of the severity of schizophrenia.

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